Electromagnetically-controlled keyboard for perforating apparatus.



E. SOLDATENGOW ELEGTROMAGNETICALLY CONTROLLED KEYBOARD FOR PERFOEATING APPARATUS.

APPLICATION FILED JAN. 8, 1913. I 1 ggfi a Patented 16, 191%.

3 SHEETS SHEET l.

ATTORNEYS I BL' SOLDATENGOW. I ELEGTROMAGNETIGALLY CONTROLLED KEYBOARD FOR PERPORATING APPARATUS.

APPLICATION IILEDJ AN. 8, 1913. 1,100,501 Patented June 16,1914.

3 SHEETSSHE)ET 2.

Wryzssas' INVPZNTOR Basile Solglonenc-ow ATTORNEYS B. SOLDATENGOW. 'ELEGTROMAGNETIGALLY CONTROLLED KEYBOARD FOR PBRFOBATING APPARATUS. APPLICATION FILED JANE/1913.

1,100,501 Patented June 16, 1914.

3 SEEETSSHEET 3.

Fig.4

wn-wass'cis INVENTOR A B dsile soldodendow I ATTORNEYS i he box 7).

BASILE SOLDATENCOW, OF I ABIS, FRANCE.

3ELEGTBOMAG-NETICALLY-GONTROLLED KEYBOARD FOR PERFORATING APPARATUS.

Specification of Letters Patent.

' Patented June 16, 1914:.

Application filed Ianumy 3,1913. Serial N0. 740,815.

Tonll whom it may concern."

Be it known that I, BAsiLE SoLoATENoow, of 37 Rue La Ifrouse, Paris, France, have invented certain new and useful Improvements in and Relating to an Electro gncticallyflontrolled Keyboard for Peri-m rating Apparatus, of which the follow ng i 6 arranged neach transverse row varies in isa specification.

. This invention has for its object to r0- vide an.elect-ro-magnetically controlled ,l eyboard for perforating machines intended for the perforation of the bands of paper utilized for telegraphic apparatus for. ex

ample and it is mainly intended for'increasing the rapidity of perforation while at the same time rendering the machine strong and insuring certainty in operation.

In the accompanying illustrates an embodiment of the invention by way of example: Figure 1 is a vertical cross section of the device on the line 1.1

in Fig. 2. Fig. 2 is a plan thereof partly broken away. .Fig. 3 is a detail. Fig; 4 is a diagram of the connections. Fig. -5 shows diagrammatically a modification of parts of Fig. 2.

Upon the bottom a of abox b intendedto support the perforating mechanism proper which may be of any appropriate constructi on and is not shown, an insulating plate 0 of ebonite for example is .mountedand supports metal :bars (1 running longitudinally of the apparatus and in which pump contacts a are housed which areinconstant electrical communication vwith these bars.

The metal barsd (thirteen of which may be provided for example) are represented more clearly in Figs-2 and 4; they are connected with metal contacts mounted on the insulating plate f supported by the lid of These contacts which are arranged upon one andthe samecircumferenee concentric with theaxis of the plate f are arranged in two series g, g 9 (eight in number for example) arranged opposite a metal segment i'connected by the conductor m with a solenoid actuating-the perforating punches the combination of which forms the dash Fig. 4 shows that the bars 1, 2, 4, 6,18, 10, 12 and 13 arethus intended to control the'dashes.

The intermediate bars, that .is to say 3, '5, 7; 9 and 1] are connected by means of conductors with contact pieces h h k drawln-g which .(five of-them being provided fimfexample) arranged in the same manner opposite a metal segment j connected by a conductor 3 with a solenoid con olling the operation of the na hos, the co ination of which forms e dot 7 As shown in Fig. 2 the number o pumps such a manner as to realize the various combinations of dashes and dots of the Morse alphabet and above each of [the transverse rows there is arranged a lever k pivoted at min the bottom of the box and provided with an operating key it upon which the correspondmg alphabetical character is marked.

Each key comprises a counter spring 0 andthe front extremity of the levers k following'a chamfer p is located opposite a boss g carried by one of the extremities of a level 7' pivoted at -s; on the box or frame whilet-he otherextremity is pivoted to a rod it connected on the other hand with the armature not the fixed core vw of a solenoid 13 locatedinsidethebox b. At their front extremity the levers la bear upon a crossbar if supported be levers 84 pivoted at 35 to the frame an this bar is able to engage with a contact .2 at which the leading-in wire 37 for *the current terminates.

The solenoid 13 housed inside the box 7) comprises in addition to its fixed core 'w a movablecore leisupported by a rocking arm 15 pivoted to a :fi'xed bracket 16 one of its extremities actuating theshaft 17 of a brush holder arm 18 by means of a suitable ratchet.

This arm which is of insulating material the entire casing of the apparatus an will terminate at the pivot 38 of the lever 15/20. Iuthe normal position of the lever 15, that isto say when the solenoid 13 is not energized this part 20' can rest upon a terminal 21 connected by a conductor 26 with the leading-in wire of the solenoid 13 While for p the position of attraction of the solenoid 13 the part 20 rests upona stop 22.

The leading-in. wire 26 of the solenoid is also connected by a conductor 23 with a contact piece 24 carried by the insulating plate f and which one of the brushes 19 can place in communication with another contact piece 25 connected with the mass and consequently acting as leading-in contact for the current. The leadin -out wire of the solenoid 13' is connected y a conductor 39 with a return terminal not here shown.

The double ring of contacts also comdprises a contact piece 27 connected by a con uctor 28 with the spacing solenoid and which can be placed in communication by a brush 19 with a contact piece 29 connected with 'a fixed contact 30 insulated from the mass and arranged opposite a movable contact 31 connected with, the mass and controlled by the spacing bar 32 which is acted upon by a contour spring.

Each'of the bent levers 34: supporting the bar t comprises an extremity 40 terminating in front of the rod 41 of a press button 42 carried by a leaf spring 43 (Fig. 4) pro-' vided at its-extremity with a contact .44 engaging With a fixed contact 45 insulated from the mass and connected by means of a conductor not here shown with the contact piece 25 of the plate f in such a manner that .this contact piece 25 is only connected with the mass when the button 42 is not pressed and occupies the position represented in Fi .4.

The operation is as follows: When a key corresponding to the letter P for example is pressed this letter being reproduced in the Morse alphabet by the signs in order to obtain this combination the key depressed depresses the pumps of the bars 2, 3, 5 and 6. Now bythe depression of the key P, as its lever is occupies the position represented in broken lines in Fig. 3 where it is held depressed by theboss q, the contacts t2 are placed in communication and the current supplied through the conductor 37 proceeds to the mass of the apparatus, then through the bracket 16 to the part 20 of the lever 15 in contact with the terminal .21 in such a manner that the current coming from the mass energizes the solenoid 13 and attracts its movable core 14. This attraction produces a partial rotation ofthe shaft 17 and the brush holder 18 brings one of the brushes 19 upon the contact 72; while at the same time the'other brush 19 reaches the contact This contact 9 corresponding to the bar 1 being deprived of current the solenoid for the dashes is not energized. The other brush 19 placing in communication the contact piece it connected with the bar 3 {the pump 6 of which is depressed) with the corresponding ring j the current then passes the segment j and'through the conductor 3/ energizes the solenoid for the dots which in the known manner controls the play of the perforations corresponding to the dots in simultaneously causing the band of paper which is being perforated to advance to the extent of one dlvision. During this attraction of the core 14 the lever 20 has reached the stop 22 which is currentless and the excitation of this solenoid 13 ceases as well as the attraction of the movable core and the latter returned by a spring (not shown), resumes the position shown in Fig. 2 with its conducting lever upon the terminal 21 a fresh attraction of the solenoid 13 takes place which again attracts the core 14 in producing a further partial rotation of the shaft 17 and of the brush holder 18. The brush 18; of the contacts h reaches the currentless contact piece 71. the bar 3 comprising no pump beneath the lever of the dcpressed key a while the brush 19 of the contacts (7 reaches the contact piece 9 connected with the bar 2 provided with a pump. The current coming from the contact te then energizes the solenoid for the dashes which controls the corresponding set of perforators. This attraction of the core 1 1 has again interrupted the current of the solenoid 13, the lever 20 of which returns to the contact 21 so as to produce a fresh attraction of the core 14 and the consequent displacement of the brush holder 18 which brin s the brushes 19 onto the contacts g and 7t and owing to the presence of a pump upon the bar 4 causes a current to pass through the contact producing the excitation of the solenoid for the dashes. The operation is reproduced until the last excitation of the perforating solenoids has been produced. From this moment no current passes to these solenoids but the mass current which still reaches the solenoid 13 continues to control the rotation ofthc brush holder 18. When the brush 19 of the contacts 9 reaches the contact 27, 29 it sends through the conductor 28 into the spacing solenoid a current which causes the band of paper which is being perforated to advance by one division in the known manner and then upon the following impulsion of the solenoid 13 this brush 19 of the contacts 5/ passes to the contacts 24 and 25. The contacts 25 being connected with the mass the solenoid is short-circuited through 25, 24'. 39 and the excitation of the solenoid 13 then becomes sufficient for energizing the fixed core to and attracting the armature n which in acting upon the lever 1' releases the lever 7:. The latter is then pressed back by its c-ainter springo and the contact if leaves rancher the contact a and returns to the position shown in Fig: 1'. This operation takes place at each depression of a key.

In order toprevent, during therotation, of the brushes, sparks on opening and closing on the several contacts, which sparks might, owing, to the relatively great intensity of current, result in a rapid deterioration of the contacts, contact blades are arranged; as shown inFig; 5, which blades are separated from each other by insulating blades 46, in order to form' externalf contact rows 9, g etc., and It, is, etc.-, and internal contact rows 6; 2T, 24 and 7'.- The size of these contacts is larger than required to determinate the impulses in the perforating solenoids, and the impulse of current is determinated in each case by a switch having, as shown by Fig; 5,Valever 47 pivoted at 48, one end of which is held into contact by means of a spring 51 withthe teeth of a ratchet wheel 49 fixed on the shaft 17. The other-end of this lever has a contact pieceliO placed in front of a contact 51" supported by an adjustablescrew 52. The two contact pieces 50 and 51' together form a switch in the circuit supplying the contacts of the two concentric "contact rows. As a consequence of such arrangement it occurs that when the so lenoid 13 is energized and when its core is attracted, said core in its downward movement causes the shaft 17 to rotate together with the ratchet wheel 49. The latter oscillates the lever 47 which separates the con-- tacts 50 and 51. The various parts are arranged in such manner that, when the brushes 18, 19 begin to'move "on their contacts the circuit is not yet broken; but when the brushes approach the insulating blades 46 the circuit is broken so that the brushes can move from one contact to the next without any production of sparks, because at the moment of such passage the contacts are deprived of current. Thus the sparks appear only between the contacts 50 and 51' easily removable, and further the position of the contact 51 is adjustable by means of the screw 52 so that the interruption be produced at the desired moment. 1

When it is desired to feed the band of paper being perforated without producing fresh perforations the button 42 is depressed without depressing a key; This button separates the contacts 44 and 45 and by pressing upon the lever 40 brings the bar t into con- 27, 29 the current proceeds to the spacing solenoid and causes the band'of paper to ad- Vance. When the'hrush 19 comes upon the contacts- 24, 25 as the contacts 44, 45 are separated the solenoid 13 is not short-circuited' and continues to be energized only by the intermediary of its arm 20 in such a manner that so long as the button 42 is depressed the-shaft 1'7" rotates and twice per revolution (when the brushes 19 pass over the contacts 27, 29): energizes the spacing solenoid which produces the paper feed. A

The advantages are as follows: It should first of all'be noted that the solenoid 13 is only energized by the current supplied through the wire 26 to a sufficient extent to produce the attraction of its movable core 14 while this excitation is insufficient for energizing the fixed core w for controlling the attraction of thearmature '0. Only the current coming through the terminal 25 and the conductor 23 vcirculates in the solenoid for a suflicicnt time to attract this armature -'v by energizing the core w.

duced thereby increasing the certainty of operationand at the same time the life of the apparatus while also facilitating its maintenance. On the other hand the arrangement of the single solenoid 13 for effecting all the functions of control of the keyboard effects an economy in installation and also an economy of current as compared with known apparatus which comprises a continuously running motor. Instead of providing the solenoid 13 with a movable core and a fixed core the excitation of which produces the liberation of the parts and their return to the normal position this return mightbe controlled by an independent clcctromagnet or any other part of desired construction. the arrangement of conducting bars connccted with the various contacts that has been described to provide bars of insulating material in which conducting pumps are screwed and appropriately arranged for the production of the desired signs and connected one with the other in any-desired manner and also with the contacts controlling the perforating solenoids. In this case only a single ring of contacts might be provided It is also possible instead of rangement described presents theadvantage,

however, of' being simpler in construction and more economical and also of being more certain in its operation.

In order to reduce the dimensions of the apparatus two or a large'r'number of different signs might be controlled by one and the same key. With this object the conducting bars might for example be fitted to a moving carriage and provided with the pump housings in suitable proximity to the levers of the corresponding'keys in such a manner that when the carriage and the bars are displaced by means of an appropriate control different combinations of pumps from those obtained when the carriage with the bars is at rest are brought beneath the levers. By suitably regulating the direction and the amplitude of the displacement of this carriage two or more combinations of contacts can be controlled by eachkey and it is also possible to render the assemblage of keys and key bars movable or the mobility of the bars andof the keys can be combined. In order to reduce thebulk of the keyboard the key levers might also be arranged in two sections insulated one from the other, one of these sections controlling by the usual operation the movement of the perforating solenoids, while the other section would be integral with a special contact which would then be operated at, the same time as the perforating keys. It is also possible for controlling the second series of signs to provide two sets of pumps end to end at different levels, the depression of the correspond ing lever being suitably limited by adisappearing stop provided with an appropriate operating member.

'The invention is applicable to the perforation of bands of paper such for example as those employed in telegraphy and generally with said contacts.

speaking, in all cases in which it is desired to produce current impulses either at regular intervals or otherwise.

What I claim is:

1. In an electro-magnetically controlled key-board for "perforating machines, a plurality of solenoids for actuating the perforating mechanism, conducting segments in electrical connection with said solenoids, contacts connected with said conducting segments, a differential solenoid having a movable core, a shaft controlled by said mov' able core, a rotary arm carried bythe shaft, andbrusl es carried by said rotary arm and arranged to. be ,brought into engagement 2. In 'an electro-magnetically controlled key-board for perforating machines, a plu rality of solenoids for actuating the perforating mechanism, conducting segments in electrical connection with said solenoids, contacts connected with said conducting segments', a differential solenoid having a movable core, a shaft controlled by said movable core, a rotary arm carried by the shaft, brushes carried by said rotary arm and arranged to be brought into engagement with said contacts, an insulating frame, concentric bars supported in said insulating frame, and operating levers provided with keys arranged above said concentric bars.

3. In an electro-magnetically controlled keyboard for perforating machines, a plurality of solenoids for actuating the perforating mechanism, conducting segments in electrical connection with said solenoids, contacts connected with said conducting segments, a differential solenoid having a movable core, a shaft controlled by said movable core, a rotary arm carried by the shaft, brushes carried by said rotary arm and arranged to be brought into engagement with said contacts, an insulating frame, concen-" tric bars supported in said insulating frame, operating levers provided with keys arranged .above said concentric bars, and a series of annularly arranged contacts connected with said concentric bars, said annularly arranged contacts being disposed opposite said first named contacts.

4. In an electro-magnetically controlled keyboard for perforating machines, a solenoid having a movable. core, a pivoted conducting arm, said core being pivotally connected to said movable arm, a pair of opposed adjustable contact members, one of said adjustable opposed contact members bein connected with the winding of said solenoid, the end of said pivoted arm on the opposite side of its pivotal connection with the-core of the solenoid being arranged to bear on one of said opposed contacts in one position of the core and on'the other of said contact members in another position.

5. In an electro-magnetically controlled keyboard for perforating machines, a solenoid having a movable core, a pivoted conducting arm, said core being pivotally connected to said movable arm, a pair of opposed adjustable contact members, one of said adjustable opposed contact members being connected with the winding of said solenoid, the end of said pivoted arm on the opposite side of its pivotal connection with the core of the solenoid being arranged to bear on' one of said opposed contacts in one position of the core and on the other of said contact members in another position, a brush holder, a shaft therefor, a ratchet carried by said 'shaft, and means carried by said pivoted arm for actuating said ratchet. HUG. In an electro-magnetically controlled keyboard for perforating machines, a solenoid having a movable core, a pivoted conducting arm, said core being pivotally connected to said movable arm, a pair of op said adjustable opposed contact members; be-

ing connected with the winding of said sole-' noid, the end of said pivoted arm on the opposite side of its pivotal connection with the core of the solenoid being arranged to bear on one of saidopposed contacts in one position of the core and on the other of said contact members in another position, a brush holder, a shaft therefor, a ratchet carried by said shaft, means carried by said said concentric rows being connected with the winding of said solenoid.

7. In an electro-magnetically controlled keyboard for perforating machines, a solenoid having a movable core, a pivoted con ducting arm, said core being pivotally con nected to said movable arm, a pair of op posed adjustable contact members, one of said adjustable opposed contact members being connected with the winding of said solenoid, the end of said pivoted arm on the opposite side of its pivotal connection with the core of the solenoid being arranged to bear on one of said opposed contacts in one position of the core and on the-other of said contact members in another position, a brush holder, a shaft therefor, a ratchehcarried by said shaft, means carried by said pivoted, arm for actuating said ratchet,-

brushes carried by said'brush holder, concentric rows of contacts arranged to be engaged by said brushes in the movement of said brush holder, one of the contacts in said concentric rows being connected with the winding of said solenoid, the companion contact in another of said concentric rows of contacts being connected with a lead wire of one sign, one of said opposed adjustable contact members being connected with the lead wire of tht same sign, and connections between the solenoid and the lead wire of the opposite sign. 1

8. In an electro-magnetically controlled keyboard" for perforating machines, a plurality of, spaced contacting segments, means movable over said segments and adapted to contact therewith for connecting the segments as thesame move thereover, an electro-magnetic member for actuating said means,and conductor connecting means for connecting said electro-magnet member and said segments with a source of current.

9. In an electro-magnetically. controlled keyboard for perforating machines, a plu-- rality of spaced segments, a movable connecting member adapted to be moved over said segments and connecting the segments as it is moved thereover, a sup orting memher for said means, a solenoi and means operated by said solenoid for moving the member'supporting said segment connecting means, whereby when said solenoid is energized said segment connecting meanswill be moved 10. In an electro-magnetically' controlled keyboard for perforating machines, a plurality of spaced segments, a source of current, a key mechanism for connecting said source of current to certain of said segments, I

a movable connecting member for said seg ments, and means mcluding a solenoid for moving said segment connecting means over all of'said segments whenever any of said keys are operated, whereby the energized segments are connected.

11. In an electro-magnetically controlled keyboard for perforating machines, a plurality of spaced segments, a plurality of key mechanisms for connecting a source of current tosome of said segments, means for connecting the remaining segments to a per-, forating apparatus, a connecting member adapted to move over said segments, and connect the energized segments with the'segments connected with said perforating apparatus, and means for moving said connecting member including a solenoid. 12. In an electro-magnetically controlled keyboard for perforating machines, aline of spaced segments, a second line of spaced segments arranged substantially parallel with said first mentioned line ofsegments, a plurality of key operated (mechanisms for connecting current to the segments in said first line of segments, a connecting member adapted to span both of. said lines of segments, and means set in motion bythe operation of said keys for moving said connecting member over said lines of segments whereby the respective segments of one 'line are connected at certain intervals withthe segments of the other line of segments.

13. In an electro-magneti'cally controlled keyboard for perforating machines, a plurality of spaced segments arranged substantially in a circle, a second line of segments arrangedsubstantially in a circle and spaced from said first mentioned line of segments, key" operated mechanism for connecting a source of current supply to certain of the segments in said first line of segments, a rotating arm adapted tomove over all of said segments, a connecting member arranged at each end of said arm for connecting the first row of segments with the second row of segments, a solenoid, and means operated by the solenoid for moving said arm step by step over said rows of segments.

14. In an electro-magnetically controlled keyboardfor perforating machines, a plurality of lines of spaced segments, key operated means for connecting a source of current to certain of said segments, a rotating arm adapted to pass over said segments, a connecting member arranged on each end of said arm adapted to connect the segments 1 In testimony whereof I have hereunto in each line of segments as the same passes {placed my hand at Paris, France, this 17th thereover, a shaft for supporting said arm, a- 1 day of December 1912.

ratchet Wheel connected with said shaft, a BASILE SOLDATENCOW. pivotally mounted member for actuating I In the presence of two witnesses:

said ratchet Wheel, and a solenoid for actu- HANSON C. COKE,

' ating said pivotally mounted member. i LOUIS COQUILLOT. 

